US8109168B2 - Converter gearing having eccentric bushes - Google Patents

Converter gearing having eccentric bushes Download PDF

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Publication number
US8109168B2
US8109168B2 US10/489,003 US48900304A US8109168B2 US 8109168 B2 US8109168 B2 US 8109168B2 US 48900304 A US48900304 A US 48900304A US 8109168 B2 US8109168 B2 US 8109168B2
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US
United States
Prior art keywords
eccentric bushes
converter
gearing
shaft
gear rim
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related, expires
Application number
US10/489,003
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English (en)
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US20050012253A1 (en
Inventor
Gerhard Wurm
Christoph Sundermann
Rüdiger Grimmel
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SMS Siemag AG
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SMS Siemag AG
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Assigned to SMS DEMAG AG reassignment SMS DEMAG AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GRIMMEL, RUDIGER, SUNDERMANN, CHRISTOPH, WURM, GERHARD
Publication of US20050012253A1 publication Critical patent/US20050012253A1/en
Assigned to SMS SIEMAG AKTIENGESELLSCHAFT reassignment SMS SIEMAG AKTIENGESELLSCHAFT CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SMS DEMAG AG
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Publication of US8109168B2 publication Critical patent/US8109168B2/en
Assigned to SMS SIEMAG AKTIENGESELLSCHAFT reassignment SMS SIEMAG AKTIENGESELLSCHAFT CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SMS DEMAG AKTIENGESELLSCHAFT
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4633—Supporting means
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/50—Tilting mechanisms for converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears

Definitions

  • the invention concerns converter gearing, which comprises a gear rim, which is connected to the axis of rotation of a converter vessel and engages at least one drive pinion of the converter gearing, and at least one locking device, which can be swung in or out to engage with or disengage from the teeth of the gear rim and has the form of a locking arm, which is mounted on a horizontal shaft and is configured with teeth, wherein the shaft is supported in a terminal bearing, the locking arm can be nonpositively engaged with or disengaged from the teeth by active force elements, e.g., hydraulic cylinders, and the shaft is supported in the housing of the converter gearing by two eccentric bushes, which rotate freely, one within the other, at each end of the shaft, in such a way that an ideal engagement position of the interacting toothed regions of the locking device and the gear rim can be set by independent rotation of the eccentric bushes, and a clamping element for adjusting a low-backlash bearing is associated with each of the eccentric bushes and the bores which hold the eccentric bushes
  • Converter gears are subjected to high and variable torques during the oxygen-blowing operation. These torques usually lead to extreme loads per unit surface area and thus to excessive wear of the teeth.
  • the harmful loads can be significantly reduced by the use of a locking arm.
  • the terminal toothing of the locking arm for locking engagement in the teeth of the gear rim on the converter vessel corresponds as a “negative form” to about 5 to 6 tooth spaces of the driven gear.
  • the load thereby evenly distributed to a region of the toothing results in a significant reduction of the surface pressure on the toothing and thus a reduction of the wear caused by the surface pressure.
  • a disadvantage of this design is the required setting precision of the locking lever and its bearing, especially when two independent locking levers are installed. This means that even small deviations from the ideal engagement position can lead to extremely high forces and stresses and thus to faster wear of the gear rim and the locking arm teeth.
  • the document EP 1 022 482 A1 describes a device for locking an element of a kinematic chain on a casting ladle, which comprises a part with an area of relief-like elevations and depressions provided on its periphery, which are complementary to areas with relief-like depressions and elevations on the element to be locked, and a device, which is installed at the end of a locking arm, for moving the part between a passive position “disengaged” from the element to be locked and an active position, in which the elevated and depressed areas of the element and the part penetrate each other to lock the element in a predetermined position. Indicating devices for the element in the predetermined position with respect to its elevated and depressed areas and devices for indicating the position of the locking arm are also provided.
  • the document GB 809 683 A concerns an improvement of the adjustable bearings of bolts, shafts, and similar elements. It describes the possibility of being able to adjust the position of these elements in all radial directions. Eccentric bushes that can be rotated one within the other are used for this purpose. The inner bush holds the shaft, while the outer bush is mounted in the housing. This produces the required possibilities for adjusting the shaft in all radial directions.
  • the document GB 590 202 A proposes that the eccentrics be locked on conical, rotationally symmetric plates by an outer screw connection with a set bolt. It is readily apparent that this is an extremely expensive and complex arrangement that requires a considerably greater construction space.
  • the objective of the invention is to produce converter gearing of the type specified in the introductory clause of claim 1 with an improved design and to design it in such a way that the optimum setting precision of the locking lever relative to the gear rim of the gearing can be readjusted at any time independently of the production of these elements.
  • the clamping element is a clamping bush that can be expanded in its inside and outside diameter by means of axial keys.
  • the design of the support of the locking arm in accordance with the invention results in the great advantage that optimum adjustability of the backlash of the drive toothing of the gearing can be achieved at any time and independently of its production, and/or the backlash can be readjusted. This results in an even load distribution in the region of the locking teeth with about 5 to 6 tooth spaces of the region of engagement of the driven gear with drastically reduced load per unit surface area of the tooth flanks. The wear of the gear wheels of the gearing is reduced accordingly.
  • a method of adjusting a low-backlash bearing of the shaft of the locking arm of a design in accordance with the invention is distinguished by the fact that an optimum engagement of the toothed region of the locking device is first set by rotation of the eccentric bushes of the shaft with the clamping elements released, and that the clamping elements of the two terminal bearings are then brought into a low-backlash bearing state by expansion, and the eccentric bushes are locked in the setting they have then reached.
  • FIG. 1 shows converter gearing in a side view.
  • FIG. 2 shows the mounting of the shaft of a locking arm in eccentric bushes in the sectional plane indicated by I-I in FIG. 1 .
  • FIG. 3 shows an axial cross section of a pair of eccentric bushes mounted one inside the other in an eccentric position.
  • FIG. 4 shows various eccentric positions of eccentric bushes mounted one inside the other.
  • FIG. 5 shows another eccentric position of eccentric bushes mounted one inside the other.
  • FIG. 6 shows another eccentric position of eccentric bushes mounted one inside the other.
  • FIG. 1 shows a side view of converter gearing, which comprises a gear rim 7 , which is connected to the axis of rotation 6 of a converter vessel (not shown) and engages at least one drive pinion 8 of the converter gearing 9 , and at least one locking device, which can be swung in or out to engage with or disengage from the teeth of the gear rim 7 and has the form of a locking arm 12 , which is mounted on a horizontal shaft 10 , is configured with teeth 11 in its end region, and is rotatably supported.
  • the locking arm 12 is supported with the shaft 10 in at least one terminal bearing 13 , 13 ′ and can be nonpositively engaged with the teeth of the gear rim 7 or disengaged from the teeth of the gear rim 7 by means of active force elements 14 , 14 ′, e.g., hydraulic cylinders, which preferably act on its end regions.
  • the shaft 10 of the locking arm 12 is supported in the housing of the converter gearing 9 by two eccentric bushes 4 , 5 , which rotate freely, one within the other, at each end of the shaft 10 .
  • An ideal mutual engagement position of the two interacting toothed regions of the locking device 12 and the gear rim 7 can be set by independent rotation of the eccentric bushes 4 , 5 .
  • a clamping element 16 , 16 ′ for adjusting a low-backlash bearing 13 , 13 ′ is associated with each of the eccentric bushes 4 , 5 and the bores 18 , 18 ′ of the converter gearing 9 which hold the eccentric bushes. This can be accomplished if, for example, the clamping element 16 is a clamping bush 19 that can be expanded in its inside and outside diameter by means of axial keys 17 .
  • FIGS. 3 to 6 show different states of the penetration of the outer eccentric bushes 5 by the inner eccentric bushes 4 .
  • the centers of rotation of the outer bushes 5 are labeled with the reference number “ 1 ”
  • the centers of rotation of the inner bushes 4 are labeled with the reference number “ 2 ”
  • the centers of the bores in the inner bushes 4 are labeled with the reference number “ 3 ”.
  • FIG. 3 shows the so-called zero position, in which the eccentricities of the two bushes offset each other.
  • the eccentricity of a bush is thus characterized by the indicated distance “S”.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • General Details Of Gearings (AREA)
  • Gears, Cams (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Prostheses (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Gear Transmission (AREA)
  • Air Bags (AREA)
  • Transmission Devices (AREA)
  • Support Of The Bearing (AREA)
  • Sliding-Contact Bearings (AREA)
  • Glass Compositions (AREA)
  • Telephone Function (AREA)
  • Toys (AREA)
US10/489,003 2001-09-11 2002-08-28 Converter gearing having eccentric bushes Expired - Fee Related US8109168B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE101-44-614.4 2001-09-11
DE10144614A DE10144614A1 (de) 2001-09-11 2001-09-11 Konvertergetriebe
DE10144614 2001-09-11
PCT/EP2002/009571 WO2003023072A1 (de) 2001-09-11 2002-08-28 Konvertergetriebe

Publications (2)

Publication Number Publication Date
US20050012253A1 US20050012253A1 (en) 2005-01-20
US8109168B2 true US8109168B2 (en) 2012-02-07

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US10/489,003 Expired - Fee Related US8109168B2 (en) 2001-09-11 2002-08-28 Converter gearing having eccentric bushes

Country Status (19)

Country Link
US (1) US8109168B2 (pt)
EP (1) EP1425425B1 (pt)
JP (1) JP4167982B2 (pt)
KR (1) KR100859317B1 (pt)
CN (1) CN1276099C (pt)
AT (1) ATE287972T1 (pt)
AU (1) AU2002339452B2 (pt)
BR (1) BR0212216B1 (pt)
CA (1) CA2460085C (pt)
DE (2) DE10144614A1 (pt)
ES (1) ES2235095T3 (pt)
HU (1) HU224680B1 (pt)
MX (1) MXPA04002285A (pt)
PL (1) PL368278A1 (pt)
RU (1) RU2287591C2 (pt)
TW (1) TW550298B (pt)
UA (1) UA76205C2 (pt)
WO (1) WO2003023072A1 (pt)
ZA (1) ZA200401099B (pt)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120106883A1 (en) * 2010-01-15 2012-05-03 Dresser-Rand Company Bearing assembly support and adjustment system
US8629803B2 (en) 2008-09-10 2014-01-14 Nextnav, Llc Wide area positioning system
US8851756B2 (en) 2011-06-29 2014-10-07 Dresser-Rand Company Whirl inhibiting coast-down bearing for magnetic bearing systems
US8874398B2 (en) 2010-11-12 2014-10-28 Nextnav, Llc Wide area positioning system
US8876389B2 (en) 2011-05-27 2014-11-04 Dresser-Rand Company Segmented coast-down bearing for magnetic bearing systems
US8917209B2 (en) 2009-09-10 2014-12-23 Nextnav, Llc Coding in a wide area positioning system (WAPS)
US8994237B2 (en) 2010-12-30 2015-03-31 Dresser-Rand Company Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems
US9024493B2 (en) 2010-12-30 2015-05-05 Dresser-Rand Company Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems
US9035829B2 (en) 2008-09-10 2015-05-19 Nextnav, Llc Wide area positioning systems and methods
US9176217B2 (en) 2011-08-02 2015-11-03 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US9247392B2 (en) 2012-06-05 2016-01-26 Nextnav, Llc Systems and methods for location positioning of user device
US9286490B2 (en) 2013-09-10 2016-03-15 Nextnav, Llc Systems and methods for providing conditional access to transmitted information
US9291712B2 (en) 2009-09-10 2016-03-22 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US9372266B2 (en) 2009-09-10 2016-06-21 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US9390279B2 (en) 2012-09-11 2016-07-12 Nextnav, Llc Systems and methods for providing conditional access to transmitted information
US9551349B2 (en) 2011-04-08 2017-01-24 Dresser-Rand Company Circulating dielectric oil cooling system for canned bearings and canned electronics
US11814692B2 (en) 2018-08-08 2023-11-14 Sms Group Gmbh Converter torque support

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005044957A1 (de) 2005-09-20 2007-03-22 Voith Patent Gmbh Breitstreckwalze
DE102005044956A1 (de) * 2005-09-20 2007-03-22 Voith Patent Gmbh Breitstreckwalze
JP4739030B2 (ja) * 2006-01-19 2011-08-03 Ｎｔｎ株式会社 流体軸受装置
UA91793C2 (ru) * 2006-10-07 2010-08-25 Смс Зимаг Акциенгезелльшафт Способ эксплуатации конвертера
CN101798613B (zh) * 2009-02-06 2012-08-15 上海宝冶建设有限公司 大型转炉三点球面支承在线快速更换方法
DE102009056219A1 (de) * 2009-11-28 2011-06-01 Sms Siemag Ag Befestigungssystem für metallurgische Gefäße
JP5578288B2 (ja) 2012-01-31 2014-08-27 Ｊｆｅスチール株式会社 発電機リム用熱延鋼板およびその製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524999A (en) * 1921-04-04 1925-02-03 Sandberg James Torsten Antifriction ball or roller bearing
GB590202A (en) 1945-01-05 1947-07-10 Edward Spurr Improvements in or relating to compound eccentric mountings
GB809683A (en) 1956-04-10 1959-03-04 Peter Dunsforth Matterson Improvements in mountings for shafts, axles and other elements
US4550955A (en) * 1983-11-04 1985-11-05 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Pretensioning element for circulation track bearing member for linear bearings
DE4307535A1 (de) * 1993-03-10 1994-09-15 Mueller Weingarten Maschf Hubverstelleinrichtung für einen Exzenterantrieb, insbesondere für eine Exzenterpresse
EP1022482A1 (fr) 1999-01-21 2000-07-26 Compagnie Engrenages Et Reducteurs Messian-Durand Dispositif de blocage d'un élément d'une chaíne cinématique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507328A1 (de) * 1985-03-01 1986-09-04 Jörg 8607 Hollfeld Lange Exzenterantrieb

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524999A (en) * 1921-04-04 1925-02-03 Sandberg James Torsten Antifriction ball or roller bearing
GB590202A (en) 1945-01-05 1947-07-10 Edward Spurr Improvements in or relating to compound eccentric mountings
GB809683A (en) 1956-04-10 1959-03-04 Peter Dunsforth Matterson Improvements in mountings for shafts, axles and other elements
US4550955A (en) * 1983-11-04 1985-11-05 Werkzeugmaschinenfabrik Oerlikon-Buhrle Ag Pretensioning element for circulation track bearing member for linear bearings
DE4307535A1 (de) * 1993-03-10 1994-09-15 Mueller Weingarten Maschf Hubverstelleinrichtung für einen Exzenterantrieb, insbesondere für eine Exzenterpresse
EP1022482A1 (fr) 1999-01-21 2000-07-26 Compagnie Engrenages Et Reducteurs Messian-Durand Dispositif de blocage d'un élément d'une chaíne cinématique
US6299829B1 (en) * 1999-01-21 2001-10-09 Compagnie Engrenages Et Reducteurs-Messian-Durand Device for immobilizing an element of a kinematic system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
English translation of DE4307535. *

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9035829B2 (en) 2008-09-10 2015-05-19 Nextnav, Llc Wide area positioning systems and methods
US11115078B2 (en) 2008-09-10 2021-09-07 Nextnav, Llc Wide area positioning system
US8629803B2 (en) 2008-09-10 2014-01-14 Nextnav, Llc Wide area positioning system
US8643540B2 (en) 2008-09-10 2014-02-04 Nextnav, Llc Wide area positioning system
US11705936B2 (en) 2008-09-10 2023-07-18 Nextnav, Llc Wide area positioning system
US9408024B2 (en) 2008-09-10 2016-08-02 Nextnav, Llc Wide area positioning system
US9119165B2 (en) 2009-09-10 2015-08-25 Nextnav, Llc Coding in a wide area positioning system (WAPS)
US8917209B2 (en) 2009-09-10 2014-12-23 Nextnav, Llc Coding in a wide area positioning system (WAPS)
US9057606B2 (en) 2009-09-10 2015-06-16 Nextnav, Llc Wide area positioning system
US11650330B2 (en) 2009-09-10 2023-05-16 Nextnav, Llc Coding in a positioning system
US9291712B2 (en) 2009-09-10 2016-03-22 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US9372266B2 (en) 2009-09-10 2016-06-21 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US20120106883A1 (en) * 2010-01-15 2012-05-03 Dresser-Rand Company Bearing assembly support and adjustment system
US8353633B2 (en) * 2010-01-15 2013-01-15 Dresser-Rand Company Bearing assembly support and adjustment system
US8874398B2 (en) 2010-11-12 2014-10-28 Nextnav, Llc Wide area positioning system
US8994237B2 (en) 2010-12-30 2015-03-31 Dresser-Rand Company Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems
US9024493B2 (en) 2010-12-30 2015-05-05 Dresser-Rand Company Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems
US9551349B2 (en) 2011-04-08 2017-01-24 Dresser-Rand Company Circulating dielectric oil cooling system for canned bearings and canned electronics
US8876389B2 (en) 2011-05-27 2014-11-04 Dresser-Rand Company Segmented coast-down bearing for magnetic bearing systems
US11047991B2 (en) 2011-06-28 2021-06-29 Nextnav, Llc Coding in a positioning system
US8851756B2 (en) 2011-06-29 2014-10-07 Dresser-Rand Company Whirl inhibiting coast-down bearing for magnetic bearing systems
US9176217B2 (en) 2011-08-02 2015-11-03 Nextnav, Llc Cell organization and transmission schemes in a wide area positioning system (WAPS)
US9247392B2 (en) 2012-06-05 2016-01-26 Nextnav, Llc Systems and methods for location positioning of user device
US9390279B2 (en) 2012-09-11 2016-07-12 Nextnav, Llc Systems and methods for providing conditional access to transmitted information
US9286490B2 (en) 2013-09-10 2016-03-15 Nextnav, Llc Systems and methods for providing conditional access to transmitted information
US11814692B2 (en) 2018-08-08 2023-11-14 Sms Group Gmbh Converter torque support

Also Published As

Publication number Publication date
JP4167982B2 (ja) 2008-10-22
HU224680B1 (hu) 2005-12-28
TW550298B (en) 2003-09-01
EP1425425A1 (de) 2004-06-09
ZA200401099B (en) 2004-08-25
MXPA04002285A (es) 2004-07-23
KR100859317B1 (ko) 2008-09-19
BR0212216B1 (pt) 2011-09-20
BR0212216A (pt) 2004-09-21
RU2287591C2 (ru) 2006-11-20
EP1425425B1 (de) 2005-01-26
RU2004110927A (ru) 2005-05-20
CA2460085C (en) 2010-05-11
DE10144614A1 (de) 2003-03-27
CA2460085A1 (en) 2003-03-20
CN1553965A (zh) 2004-12-08
WO2003023072A1 (de) 2003-03-20
AU2002339452B2 (en) 2007-06-14
UA76205C2 (en) 2006-07-17
ES2235095T3 (es) 2005-07-01
ATE287972T1 (de) 2005-02-15
KR20040033041A (ko) 2004-04-17
JP2005502780A (ja) 2005-01-27
US20050012253A1 (en) 2005-01-20
DE50202140D1 (de) 2005-03-03
HUP0401388A2 (en) 2004-10-28
PL368278A1 (en) 2005-03-21
CN1276099C (zh) 2006-09-20

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